Thanks for asking!
Here are some sources to help you.
https://www.wikihow.com/Do-Fractions
https://www.wikihow.com/Do-Long-Division
https://www.khanacademy.org/math/cc-fourth-grade-math/division
Here are some video tutorials.
https://www.khanacademy.org/math/arithmetic/fraction-arithmetic/arith-review-fractions-intro/v/fraction-basics
https://www.khanacademy.org/math/arithmetic/arith-review-multiply-divide/arith-review-multi-digit-div/v/long-division-without-remainder
If you need any more help, I can simplify it and explain it better to you.
What are you having trouble with? I might be able to help.
-ArtistGirl